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[leetcode]Plus One
Plus OneGiven a non-negative number represented as an array of digits, plus one to the number.The digits are stored such that the most significant dig...
分类:其他好文   时间:2014-07-18 16:17:10    阅读次数:249
UVA 10042 Smith Numbers(数论)
Smith Numbers Background While skimming his phone directory in 1982, Albert Wilansky, a mathematician of Lehigh University , noticed that the telephone number of his brother-in-law H. Smith had ...
分类:其他好文   时间:2014-07-18 13:28:06    阅读次数:234
Uva 679 Dropping Balls
Dropping BallsA number of K balls are dropped one by one from the root of a fully binary tree structure FBT. Each time the ball being dropped first v....
分类:其他好文   时间:2014-07-18 12:14:24    阅读次数:202
C++基础学习教程(五)
这一讲我们集中讲解类和他的一些特性.首先我们从自定义一个有理数类来开始. 在C语言中有一个关键字: struct ,用来创建一个结构体类型.但是在C++中这个关键的含义就不仅仅如此了,下面我们可以看下示例: /// Represent a rational number. struct rational { int numerator; ///< numerator gets th...
分类:编程语言   时间:2014-07-18 11:31:36    阅读次数:422
Poj 1144 Zoj 1311 求割点 模板
写这个就是为了手写一份好用的求割点模板: 吐槽下,题目中的 Each of the next at most N lines contains the number of a place followed by the numbers of some places to which there is a direct line from this place.  这个at most是不可信的,应...
分类:其他好文   时间:2014-07-18 11:29:34    阅读次数:232
LeetCode :: Sum Root to Leaf Numbers [tree、dfs]
Given a binary tree containing digits from 0-9 only, each root-to-leaf path could represent a number. An example is the root-to-leaf path 1->2->3 which represents the number 123. Find the to...
分类:其他好文   时间:2014-07-18 11:13:57    阅读次数:204
JS---正则表达式验证
function is_number(field,div_id)//div_id是显示错误的div的ID{ var patt=new RegExp("^[0-9]{1,2}$");//建立正则表达式对象patt with(field){ if(patt.test(value)==false){//....
分类:Web程序   时间:2014-07-18 10:30:53    阅读次数:224
CodeForces114E——Double Happiness(素数二次筛选)
Double HappinessOn the math lesson a teacher asked each pupil to come up with his own lucky numbers. As a fan of number theory Peter chose prime numbe...
分类:移动开发   时间:2014-07-18 00:12:12    阅读次数:616
曲演杂坛--蛋疼的ROW_NUMBER函数
使用ROW_NUMBER来分页几乎是家喻户晓的东东了,而且这东西简单易用,简直就是程序员居家必备之杀器,然而ROW_NUMBER也不是一招吃遍天下鲜的无敌BUG般存在,最近就遇到几个小问题,拿出来供大家娱乐下。---==========================================...
分类:其他好文   时间:2014-07-18 00:02:19    阅读次数:332
js 判断 0<15<30返回值是 true
与java不一样,因为js是弱语言0<15 返回布尔类型 true,表达式变成true<30,js 有默认类型转换机制,表达式true<30 中的true会 转换成number类型 1,从而变成1< 30,就得到true;总结:一般不要适应,if(0<15<30)这种,一般用&& 或者 || ;js...
分类:Web程序   时间:2014-07-17 22:35:03    阅读次数:266
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